Faidherbia albida decline threatens Senegal's agricultural fertility

In the peanut basin of Senegal, specifically around the village of Diohine, the Faidherbia albida tree—locally known as ‘kad’ in Wolof—is facing a progressive decline. This species plays a critical role in maintaining soil fertility and supporting crop stability in semi-arid regions.

Farmers report that the tree’s leaves and organic residues enrich the soil, while its root system helps maintain land productivity. Local cultivators note that even in infertile areas, the presence of these trees can ensure successful harvests for crops grown beneath them.

The degradation of these agroforestry parks is attributed to a combination of past droughts, land pressure, and the intensification of farming practices. Researchers from the Institut de recherche pour le développement (IRD) are currently conducting studies, such as the ‘Faidherbia-Flux’ project, to analyze the specific interactions between the tree and its surrounding environment to better understand its impact on annual crops.